Home / 57,154.79-78,912.12-35,677.23

Finding the Fourth Proportional to 57,154.79, 78,912.12 and 35,677.23

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Solution

The fourth proportional to 57,154.79, 78,912.12 and 35,677.23 is: 49,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,154.79 : 78,912.12 = 35,677.23 : x
  2. Step 2: Convert to fraction form
    57,154.79/78,912.12 = 35,677.23/x
  3. Step 3: Cross multiply
    57,154.79x = 78,912.12 × 35,677.23
  4. Step 4: Simplify right side
    57,154.79x = 2,815,365,936.09
  5. Step 5: Solve for x
    x = 2,815,365,936.09/57,154.79
  6. Step 6: Final answer
    x = 49,258.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.